新增长度单位
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>* {margin: 0;padding: 0;}.box1 {width: 200px;height: 200px;background-color: deepskyblue;}.box2 {width: 50vw;height: 20vh;background-color: deeppink;}.box3 {width: 20vmax;height: 20vmin;background-color: orange;}</style>
</head>
<body><div class="box1">像素</div><div class="box2">vw和vh</div><div class="box3">vmax和vmin</div>
</body>
</html>
新增盒子模型
box-sizing
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 200px;height: 200px;background-color: deepskyblue;padding: 5px;border: 5px solid black;margin-bottom: 20px;}.box2 {width: 200px;height: 200px;background-color: gray;padding: 5px;border: 5px solid black;box-sizing: border-box;}</style>
</head>
<body><div class="box1"></div><div class="box2"></div>
</body>
</html>
resize
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 400px;height: 400px;background-color: orange;resize: both;overflow: scroll;}.box2 {width: 800px;height: 100px;background-color: skyblue;}</style>
</head>
<body><div class="box1"><div class="box2"></div></div></body>
</html>
box-shadow
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 400px;height: 400px;background-color: orange;margin: 0 auto;margin-top: 100px;font-size: 40px;/* 2个值:水平位置,垂直位置 *//* box-shadow: 10px 10px; *//* 3个值:水平位置,垂直位置,阴影颜色 *//* box-shadow: 10px 10px blue; *//* 3个值:水平位置,垂直位置,模糊程度 *//* box-shadow: 10px 10px 20px; *//* 4个值:水平位置,垂直位置,模糊程度,阴影颜色 *//* box-shadow: 10px 10px 20px blue; *//* 5个值:水平位置,垂直位置,模糊程度,阴影外延,阴影颜色 *//* box-shadow: 10px 10px 20px 0px blue; *//* 6个值:水平位置,垂直位置,模糊程度,阴影外延,阴影颜色,内阴影 *//* box-shadow: 10px 10px 20px 0px blue inset; */}</style>
</head>
<body><div class="box1">你好啊</div>
</body>
</html>
opacity
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 200px;height: 200px;background-color: orange;font-size: 40px;opacity: 0.5;font-weight: bold;}</style>
</head>
<body><div class="box1">你好啊</div>
</body>
</html>
新增背景相关属性
background-origin
<!DOCTYPE html>
<html lang="zh-CN"><head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 400px;height: 400px;background-color: skyblue;margin: 0 auto;font-size: 40px;padding: 50px;border: 50px dashed rgba(255,0,0,0.7);background-image: url("资料/图片/bg01.jpg");background-repeat: no-repeat;background-origin: content-box;}</style>
</head><body><div class="box1">你好啊</div>
</body></html>
background-clip
<!DOCTYPE html>
<html lang="zh-CN"><head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 400px;height: 400px;background-color: skyblue;margin: 0 auto;font-size: 40px;padding: 50px;border: 50px dashed rgba(255,0,0,0.7);background-image: url("资料/图片/bg02.jpg");background-repeat: no-repeat;background-clip: padding-box;}</style>
</head><body><div class="box1">你好啊</div>
</body></html>
<!DOCTYPE html>
<html lang="zh-CN"><head><meta charset="UTF-8"><title>Document</title><style>.box1 {width: 400px;height: 400px;background-color: skyblue;margin: 0 auto;font-size: 40px;padding: 50px;border: 50px dashed rgba(255,0,0,0.7);color: transparent;background-image: url("资料/图片/bg02.jpg");background-repeat: no-repeat;background-clip: padding-box;-webkit-background-clip: text;}</style>
</head><body><div class="box1">你好啊</div>
</body></html>
background-size
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>div {width: 400px;height: 400px;border: 1px solid black;background-image: url('./资料/图片/bg03.jpg');/* background-size: 400px 400px; *//* background-size: 100% 100%; *//* background-size: contain; */background-size:auto;}</style>
</head>
<body><div></div>
</body>
</html>
background复合属性
多背景图
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><title>Document</title><style>div {width: 400px;height: 400px;border: 1px solid black;background: url('./资料/图片/bg-lt.png') no-repeat left top,url('./资料/图片/bg-rt.png') no-repeat right top,url('./资料/图片/bg-lb.png') no-repeat left bottom,url('./资料/图片/bg-rb.png') no-repeat right bottom;}</style>
</head>
<body><div></div>
</body>
</html>
新增边框相关属性
边框圆角
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>div {width: 400px;height: 400px;border: 2px solid black;margin: 0 auto;/* border-radius: 200px; *//* border-radius: 50%; *//* border-top-left-radius: 100px;border-top-right-radius: 50px;border-bottom-left-radius: 20px;border-bottom-right-radius: 10px; *//* border-top-left-radius: 100px 50px;border-top-right-radius: 50px 20px;border-bottom-left-radius: 20px 10px;border-bottom-right-radius: 10px 5px; *//* border-radius: 100px 50px 20px 10px / 50px 20px 10px 5px; */}</style>
</head>
<body><div></div>
</body>
</html>
边框外轮廓
新增文本属性
文本阴影
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>h1 {font-size: 80px;text-align: center;color: white;/* text-shadow: 3px 3px 10px red; */text-shadow: 0px 0px 15px black;}</style>
</head>
<body><h1>你好呀</h1>
</body>
</html>
文本换行
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>div {width: 400px;height: 400px;border: 1px solid black;font-size: 20px;white-space: pre-wrap;}</style>
</head>
<body><div>山回路转不见君山回路转不见君 雪上空留马行处山回路转不见君雪上空留马行处山回路转不见君雪上空留马行处雪上空留马行处山回路转不见君雪上空留马行处山回路转不见君雪上空留马行处山回路转不见君雪上空留马行处山回路转不见君雪上空留马行处山回路转不见君雪上空留马行处</div>
</body>
</html>
文本溢出
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>ul {width: 400px;height: 400px;border: 1px solid black;font-size: 20px;list-style: none;padding-left: 0;}li {margin-bottom: 10px;white-space: nowrap;text-overflow: ellipsis;overflow: hidden;}</style>
</head>
<body><ul><li>新闻 |东城区:禁毒宣传进万家,织密防毒“安全网”</li><li>“选学校还是选专业重要?”新闻专业到底是不是如张雪峰所说的?</li><li>小暑来啦</li></ul>
</body>
</html>